fix(docs): improve docs

DEVELOPERS.md

@@ -29,7 +29,6 @@ following products on your development machine:
 The project is organised into the following folder structure:
 
 - `/` - Project-level configuration (linting rules, CI, docs, license)
-- `public/` - Files that are deployed to GitHub pages (web-content). The generated JS & CSS files are copied here.
 - `src/` - The source code and test specifications
 
 ## Installing
@@ -39,19 +38,6 @@ The project is organised into the following folder structure:
 npm install
 ```
 
-## Running Tests
-
-```shell
-# Run unit tests
-npm test
-
-# Run unit tests in watch mode
-npm run test:watch
-
-# Run tests and see the coverage report
-npm run test:reportlist
-```
-
 ## Formatting your source code
 
 This project uses [eslint](https://eslint.org) and [prettier](https://prettier.io/) to format the source code.

src/ptx.js

@@ -74,9 +74,9 @@ function showHelp() {
   console.log('\nwhere:');
   console.log('  tuneConfigFile    Path to the tune config file, relative to the script');
   console.log('\nExample: npx ptx scripts/publishPlanStream.json');
-  console.log('\nNote: The PTX_STACK_NAME environment variable must be set to the name of the PowerTune stack');
+  console.log('Note:    The PTX_STACK_NAME environment variable must be set to the name of the PowerTune stack');
   console.log(
-    '\nReference: https://github.com/alexcasalboni/aws-lambda-power-tuning/blob/master/README-INPUT-OUTPUT.md',
+    'Reference: https://github.com/alexcasalboni/aws-lambda-power-tuning/blob/master/README-INPUT-OUTPUT.md',
   );
   console.log('');
 }